<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList()"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList()"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage()">添加商品</el-button>
        </el-col>
      </el-row>

      <el-table :data="goodList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格（元）"
          prop="goods_price"
          width="95px"
        ></el-table-column>
        <el-table-column
          label="商品数量"
          prop="goods_number"
          width="80px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="80px"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              :ab="scope"
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="editById(scope.row.goods_id)"
            ></el-button>
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>

    <!-- 编辑对话框 -->
    <el-dialog
      title="编辑商品"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editClosed()"
    >
      <el-form ref="editFormRef" :model="editForm"
      :rules="editFormRules" label-width="80px">
        <el-form-item label="商品名称" prop="goods_name">
          <el-input v-model="editForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="商品价格" prop="goods_price">
          <el-input type="number" v-model="editForm.goods_price"></el-input>
        </el-form-item>
        <el-form-item label="商品数量" prop="goods_number">
          <el-input type="number" v-model="editForm.goods_number"></el-input>
        </el-form-item>
        <el-form-item label="商品重量" prop="goods_weight">
          <el-input type="number" v-model="editForm.goods_weight"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editRolesInfo()"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5,
      },
      // 商品列表
      goodList: [],
      // 总数据条数
      total: 0,
      // 显示与隐藏编辑对话框
      editDialogVisible: false,
      editForm:{},
      editFormRules:{
         goods_name: [
            { required: true, message: '请输入商品名称', trigger: 'blur' },            
          ],
          goods_price: [
            { required: true, message: '请输入商品价格', trigger: 'blur' },            
          ],
          goods_number: [
            { required: true, message: '请输入商品数量', trigger: 'blur' },            
          ],
          goods_weight: [
            { required: true, message: '请输入商品重量', trigger: 'blur' },            
          ],
      }
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //   根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })

      if (res.meta.status !== 200)
        return this.$message.error('获取商品列表失败！')
      //   return this.$message.success('获取商品列表成功')
      this.goodList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      if (confirmResult !== 'confirm')
        return this.$message.error('已经取消删除！')
      const { data: res } = await this.$http.delete(`goods/${id}`)
      this.getGoodsList()
      if (res.meta.status !== 200) return this.$message.error('删除失败！')
      return this.$message.success('删除成功！')
    },
    goAddpage() {
      // 跳转到添加页面
      this.$router.push('/goods/add')
    },
    // 点击编辑按钮，展开对话框
   async editById(id) {
      const { data: res } = await this.$http.get('goods/' + id)
      if (res.meta.status !== 200)
        return this.$message.error('查询商品信息失败！')
      // console.log(res.data);
      this.editForm = res.data  
      console.log(this.editForm);   
      this.editDialogVisible = true
    },
    // 监听编辑对话框的关闭事件
    editClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 点击确认按钮，提交编辑商品
    editRolesInfo(){
      this.$refs.editFormRef.validate(async valid=>{
        if(!valid) return
        // console.log(this.editForm.goods_id);
        const {data:res}=await this.$http.put('goods/'+this.editForm.goods_id,
        {goods_name:this.editForm.goods_name,
        goods_price:this.editForm.goods_price,
        goods_number:this.editForm.goods_number,
        goods_weight:this.editForm.goods_weight})
        
        if(res.meta.status!==201) return this.$message.error('修改商品信息失败！')
        this.$message.success('修改商品信息成功！')
        this.editDialogVisible=false
        this.getGoodsList()
        
      })
    }
  },
}
</script>

<style lang="less" scoped>
.el-table {
  margin-top: 15px;
}
</style>